{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x824209db9a101eeccf2f70dcce140d6fd692ba46f418d823b3268441e39f2f81",
    "signature": "0x4ff2ed96f2633fe38b05c732f25285d3bdcfa8216ef3c6431ac6afcfdb1ef7212c69667d95e64d144203ea3ea05c9eeedaed2e7fd33b7301fe8d3837315777b01c",
    "signer": "0x5EfA9a4B8297fF11C3f5813942706bd039A47a34",
    "userId": "446570480"
  }
}